SN54LS628J

Programmable Timers And Oscillators Overview

The SN54LS628J is a voltage-controlled oscillator (VCO) from Texas Instruments, designed for military-grade applications. It operates within a temperature range of -55°C to 125°C and utilizes a 14-pin ceramic dual in-line package (CDIP). The device generates square wave outputs with frequencies ranging from 1.1 MHz to 25 MHz. It supports a load capacitance of up to 45 pF and functions at a supply voltage of 5 V. Key design features include separate supply voltage pins to isolate frequency control inputs and oscillators from output circuitry, ensuring highly stable operation.

Programmable Timers And Oscillators Feature Summary

• Voltage-controlled oscillator generating square wave outputs
• Separate supply pins isolate frequency control inputs from output circuitry
• Highly stable operation across specified temperature ranges

Programmable Timers And Oscillators Applications

• Military electronic systems requiring wide temperature stability
• Frequency synthesis circuits
• Clock generation modules

Programmable Timers And Oscillators Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature grade. Ensure the component matches the required military specifications for your application. Cross-reference the datasheet revision to confirm pinout compatibility. Check for any recent manufacturing updates that may affect performance characteristics. Confirm availability through authorized distributors to avoid counterfeit parts.

Programmable Timers And Oscillators Selection Notes

Select this component when a high-stability VCO is needed for harsh environments. Consider the 14-CDIP package for robustness in military or aerospace contexts. Evaluate the frequency range requirements against the 1.1 MHz to 25 MHz specification. Assess the need for input-output isolation provided by separate supply pins. Compare power consumption and load capacitance limits with system constraints.

Programmable Timers And Oscillators Part Context

This part belongs to the SN54LS series, which denotes military-grade logic components. The 'J' suffix indicates a ceramic dual in-line package suitable for high-reliability applications. It is distinct from commercial-grade counterparts like the SN74LS series due to its extended temperature range and packaging material.

Programmable Timers And Oscillators Replacement Considerations

Direct substitutes include the SN54LS628J.A variant. Verify compatibility with existing circuit designs before replacement. Ensure thermal and electrical specifications match the original requirements.